(EU) - Worlds in Our Solar System, and Planets in the Starry Heavens, and Their Inhabitants, as Well as the Spirits and Angels There: From Things Heard and Seen

167. Their sun which to us is a star, appears flaming there, and about one-fourth as large as our own sun. In their year are about two hundred days, and the days of fifteen hours length, as compared with the days on our earth. The earth itself is among the smallest in the starry heavens, being scarcely five hundred German miles* in circumference. This I learned from angels by comparison with such things as they saw in me, or in my memory, in relation to our earth. They formed these conclusions by angelic ideas, by which the measures of spaces and times are immediately known in their just relation to the spaces and times elsewhere. In such comparisons angelic ideas, which are spiritual, immensely exceed human idea which are natural. * Or two thousand English geographical miles.